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Lesson Two

In Lesson Two, we will learn simple methods to construct a Query statement that will refine your data search.

Query Data

• Navigate to the NVCRIS website.

• Make sure that County is the active Layer. 
• Then select the Query Button from the Button bar.

A query box appears at the bottom of the map.

• Use the pulldown menus to enter the query data. All fields within the active layer may be queried against the field attributes for that data set.
• In the box, select Area. 
• Select and a default value is placed in the Value box. 
• Scroll down and select 27,500,000,000 (sq. meters).
• From  the box, select > (greater than).
• Click . The query is placed in the query string box.
• Click .

The query results are displayed graphically and in tabular form.

• Select 2 to zoom to the Elko County records.

Select and Buffer 

In order to buffer a feature, an area must first be selected so that a buffer can be applied.

• With Elko County selected, select the Zoom Button .

• Left click and drag the cursor from the upper left corner to the lower right hand corner of the 41115-A1 quadrangle.
• Release the left mouse button.
• Continue to click and drag the corners of the 41115-A1 quad until the the 7.5 minute quads appear.
• Left click and drag the cursor from the upper left corner to the lower right hand corner of the 41115-C7 7.5 min  quadrangle and zoom until  TRS (Township/Range/Section) appears in the Layer Box. 

• Click the Active box to make TRS (Township/Range/Section) active.
• Select the Clear Selection Button to remove the shaded county background.
• Remove the all visible layers except TRS  by clicking the checkmark in the Visible box on the Map Layer.       

• Click .
• From the Button Bar, Click the Select by Rectangle Button ,  left click and drag the cursor to create a small box around the number 31 in Section 31.

Section 31 is selected. Note how the TRSCODE is encoded. 0400N0550E031 = T.40.0N. R.55.0E, Sec 31.

• From the Button Bar, select the Buffer Button .

The Buffer box is displayed.

• In the box use the pull down to select Inventories.
• Set a buffered distance of 1000 meters.

Note: If a unit measure other than meters is displayed, change the units by selecting the Measure Units Button . Make sure to click the Set Units button, then re-apply the buffer.

• Place a check in the Display Attributes box  then click the Create Buffer button.

The results are displayed and all Inventories intersecting the buffered area are displayed. 

• Scroll down the Attribute table to view tabular results.

To return to the opening view:

• Click the Zoom to Full Extent Button.