The Arizona Geological Survey (AZGS) has been compiling a statewide landslide database for hazard mitigation planning. The AZ Statewide Landslide Inventory Database (AZSLID) contains landslide and mass movement data from published maps and reports as well as newly documented slides identified while building the database. The proximity of landslides to critical infrastructure, utilities, and populated areas is important information not easily accessible prior to creation of the database. AZSLID will be useful to state, local, county, and tribal governments for hazard mitigation and planning purposes.

Field-based geologic mapping has identified one large central volcano and 84 small volcanoes and intrusions in an area of 180 mi2 (470 km2) on and near the Mogollon Rim in the north part of Verde Valley, Arizona. Geographic coherency of the volcanic structures and alkaline lava compositions that are markedly undersaturated in silica characterize this volcanic terrane, which, informally, is named the north Verde volcanic field. The volcanic field projects into the Arizona Transition Zone from the southern Colorado Plateau as an alkaline appendage of the basaltic Mormon volcanic field. Transitional and subalkaline igneous-rock series are also represented. Ages of the volcanic rocks are Middle to Late Miocene.

This report is a nontechnical swnmary of the energy resources of Arizona intended to accompany the Energy Resources Map of Arizona. Arizona is endowed with a variety of energy resources and potential resources; each is given its own chapter in this report. Chapters are arranged according to the relative importance of each resource to the State, with the most important described first. Coal is discussed first; the next three chapters address hydroelectric power, uranium, and petroleum, the other important traditional energy resources. Geothennal, solar, wind, and biomass energy, usually considered' 'alternative" energy resources, are treated in the last four chapters of this report. They have considerable development potential, but as of 1991 have not been exploited on a significant scale.

The districts delineated in this report are based on Metallic Mineral Districts of Arizona (Ari-zona Geological Survey Map 18) [Keith et al.,1983a], which served as a starting point for this da-tabase. The mineral districts attempt to identify mineralized areas based on geologic character and age of mineralization. This database is an attempt to assign accurate spatial locations to the dis-tricts shown on the Keith et al. [1983a] map, and to provide more in depth information on the geology of the districts. The districts are classified according to the system elaborated in Keith et al. [1983b], a report which was published in conjunction with the Keith et al. [1983a] map. This report discusses definition of the districts, and has a summary of metal production reported to the U.S. Bureau of Mines, and in published sources available as of 1981 [Keith et al., 1983b]. The production data included in the table DistrictDataAZMIN are imported from a previous Arizona Geological Survey database [Welty et al., 1989] that contained the production data from the printed publication [Keith et al., 1983b]. Minor discrepancies with data reported in Keith et al [1983b] are the result of edits to that data made during final production of the published report and not updated in the database version that has been preserved, or are the result of edits, correc-tions and additions that have been made to this database since publication of the original produc-tion summary.

This past year marked a major milestone for AZGS. The 4-year, $22 million National Geothermal Data System (NGDS) project formally ended on December 1, 2014, and with it a special period in AZGS history. This was the largest, most ambitious project we have ever undertaken. We had 45 subcontractors in 45 states and a number of other collaborators and contributors. NGDS is now operational, with 60+ data providers sharing more than 10 million records from all 50 states. We are deploying that same open source, open access data integration framework for a variety of other applications, not only in AZGS but nationally and internationally. This has been a great effort, for the Survey, both technically and financially. The project began just as the recession budget cuts slashed state support, so that today, AZGS is 85–90% funded with grant funds. State funds have been providing less than 10% of our annual budget. The NGDS project allowed the Survey to not only survive but thrive during a period of economic challenges.

This bibliography provides references for each known metallic mineral district in Gila, Maricopa, Pinal, and Yavapai Counties in Arizona. In a mineral-district classification, known metallic mineral occurrences are grouped according to geologic and metallogenic criteria rather than the geographic associations used in the traditional mining-district approach (Keith and others, 1983a). Ideally, a mineral district should consist of mineral occurrences that have a common genesis. A mineral-district classification is especially useful for understanding the geologic setting of mineralization and the distribution of known mineral occurrences with similar geologic settings. A mineral-district map, however, is by no means a statement of mineral potential because future mineral discoveries within and outside established districts will affect district boundaries. Although understanding the distribution of known mineral deposits is essential in evaluating mineral potential, many other geologic and technological factors must also be considered (Fellows, 1984). This circular is the fourth in a series of county-by-county bibliographies for metallic mineral districts in Arizona. This circular and those previously published (Schnabel and others, 1986; Schnabel and Welty, 1986a,b) are based upon the work of Keith and others (1983b), but provide a more usable format and more comprehensive reference lists than the latter publication.

Recent statutory and regulatory changes that affect Federal mining claims have made portions of Special Report 12, Laws and Regulations Governing Mineral Rights in Arizona, 9th Edition inaccurate. Pending the completion of the rewriting of Special Report 12 this circular attempts to briefly describe statutory and agency policy changes in mining claim procedures. These changes are especially pertinent for the information on Federal filing requirements, maintenance of title, surface management regulations, and patenting of claims on pages 28 to 45. Department circulars that describe previous changes are: Arizona Mining Law Change – 1989 (Circular 30) Arizona Recordation Law Change, 1991 (Circular 36) Annual Assessment Work Requirements Under Arizona Statue, 1994 (Circular 56) These circulars, included in Special Report 11, should also be reviewed. It is important for claimants to keep informed as Congress or managing agencies make additional changes to mining law or regulatory procedures.

The public land laws of the United States have created a wide diversity of estates in land, each having its own idiosyncrasies. In addition, the lands in public ownership are subject to daily changes in the applicability of the various public land laws, including the mining laws, by virtue of congressional and administrative withdrawals. It is therefore impossible to publish an accurate statewide land status map that would not be obsolete almost immediately. By following the procedures outlined below, however, a reasonably accurate determination of status can be obtained.

The Page Springs Quadrangle is in the northern part of Verde Valley in north-central Arizona, at the northern edge of the Transition Zone between the Colorado Plateau and the Basin and Range (Fig. 1). Paved access to the southeast quadrant of the map is provided by Arizona State Route 89A (formerly US89A) and Yavapai County Route 50; other parts of the map area can be reached by graded and ungraded U.S. Forest roads and informal tracks appropriate for 4-wheel drive vehicles. The western half of the quadrangle is covered by fluvial and lacustrine rocks of the Miocene and Pliocene Verde Formation, and Miocene volcanic rocks occupy most of the eastern half; Permian sedimentary rocks underlie the northeast corner. All geologic contacts and faults in the volcanic area were traced in the field; aerial photographs supplemented field mapping in tracing contacts and faults in the Permian strata. Volcanic map units were defined on the bases of lithology, structure, and morphology, and stratigraphic relations were determined in the field on the basis of traditional geologic principles such as superposition and cross-cutting relations.

Wildfires are increasing in size and severity across the western U.S. (Stephens, 2005; Littell and others, 2009). Concurrently, encroachment and development into the wildland-urban interface (WUI) is increasing, placing people at greater risks from wildfires and from the aftermath of fires (Stein and others, 2013). The Arizona Geological Survey (AZGS) is using data from recent wildfires and debris flows in Arizona, in cooperation with the U.S. Geological Survey (USGS), to assess how well available USGS models predict post-wildfire debris flows and to define rainfall intensity-duration thresholds that trigger post-fire debris flows. DI-44 version 1.0 contains the data collected and developed during the initial phase of this work. A short description of the project is provided below; a full description is in Appendix B of Youberg (2014). Included in this report are the geospatial data from the study: study basins and outlet locations, wildfire perimeters and final soil burn severity data, rain gauge locations, and 10 m digital elevation models with associated hill shaded models. Data from new wildfires will be added as they become available.